Display device

Abstract

A display device includes an upper substrate, a lower substrate, and a display medium layer. A displaying region, a first bonding region, and a second bonding region are defined in the upper substrate. The first and second boding regions are positioned at two sides of the displaying region. First upper bonding pads and second upper bonding pads are disposed in the first boding region and the second boding region respectively on the bottom surface of the upper substrate. Each first upper boding pad and each second upper boding pad connect with a corresponding odd strip-shaped electrode and a corresponding even strip-shaped electrode in the displaying region respectively. First and second lower bonding pads are disposed on the top surface of the lower substrate, each of which is electrically connected to one corresponding first upper bonding pads or one corresponding second upper bonding pads.

What is claimed is: 
     
       1. A display device, comprising:
 an upper substrate, having a bottom surface, wherein a display region, a first bonding region and a second bonding region are defined on the upper substrate, and the first bonding region and the second bonding region are disposed at two sides of the display region; 
 a lower substrate, being in parallel with the upper substrate and disposed at a lower side of the upper substrate, the lower substrate having a top surface facing the bottom surface of the upper substrate; 
 a display medium layer, disposed between the upper substrate and the lower substrate and in the display region; 
 an electrode layer, disposed on the bottom surface of the upper substrate, the electrode layer comprising:
 a plurality of strip-shaped electrodes, comprising a plurality of odd strip-shaped electrodes and a plurality of even strip-shaped electrodes, wherein the odd strip-shaped electrodes and the even strip-shaped electrodes are arranged in parallel with each other in the display region; 
 a plurality of first upper bonding pads, disposed in the first bonding region, wherein each of the first upper bonding pads connects with a corresponding odd strip-shaped electrode; and 
 a plurality of second upper bonding pads, disposed in the second bonding region, wherein each of the second upper bonding pads connects with a corresponding even strip-shaped electrodes; and 
 
 a conductive layer, disposed on the top surface of the lower substrate, the conductive layer comprising:
 a plurality of first lower bonding pads, each of the first lower bonding pads being electrically connected to a corresponding first upper bonding pads; and 
 a plurality of second lower bonding pads, each of the second lower bonding pads being electrically connected to a corresponding second upper bonding pad. 
 
 
     
     
       2. The display device of  claim 1 , wherein along a direction substantially perpendicular to an arrangement direction of the strip-shaped electrodes, the first upper bonding pads and the second upper bonding pads have a first width and the first lower bonding pads and the second lower bonding pads have a second width, and the first width is greater than the second width. 
     
     
       3. The display device of  claim 2 , wherein the strip-shaped electrodes have a third width, the first width is greater than the third width, and the second width is approximately equal to the third width. 
     
     
       4. The display device of  claim 2 , wherein the first upper bonding pads and the second upper bonding pads are rectangles and the first upper bonding pads and the second lower bonding pads are squares. 
     
     
       5. The display device of  claim 1 , wherein along a direction substantially perpendicular to an arrangement direction of the strip-shaped electrodes, the first upper bonding pads and the second upper bonding pads have a first width and the first lower bonding pads and the second lower bonding pads have a second width, and the first width is less than the second width. 
     
     
       6. The display device of  claim 5 , wherein the strip-shaped electrodes have a third width, the second width is greater than the third width, and the first width is approximately equal to the third width. 
     
     
       7. The display device of  claim 5 , wherein the first lower bonding pads and the second lower bonding pads are rectangles. 
     
     
       8. The display device of  claim 7 , wherein an overlapping portion of a projection shadow of each of the first upper bonding pads and the corresponding first lower bonding pad is a square, and an overlapping portion of a projection shadow of each of the second upper bonding pads and the corresponding second lower bonding pad is a square. 
     
     
       9. The display device of  claim 1 , wherein each of the first upper bonding pads and the second upper bonding pads has a rounding corner in a connection part with the corresponding strip-shaped electrode. 
     
     
       10. The display device of  claim 1 , wherein the first bonding region and the second bonding region are arranged a long a first direction and are disposed at two sides of the display region respectively. 
     
     
       11. The display device of  claim 10 , wherein the strip-shaped electrodes are arranged along a second direction, and the second direction is substantially perpendicular to the first direction. 
     
     
       12. The display device of  claim 1 , wherein along a direction substantially perpendicular to an arrangement direction of the strip-shaped electrodes, a maximum width of each of the first upper bonding pads is greater than a maximum width of the corresponding first lower bonding pad, and/or a maximum width of each of the second upper bonding pads is greater than a maximum width of the corresponding second lower bonding pad. 
     
     
       13. The display device of  claim 1 , wherein along a direction substantially perpendicular to an arrangement direction of the strip-shaped electrodes, a maximum width of each of the first lower bonding pads is greater than a maximum width of the corresponding first upper bonding pad, and/or a maximum width of each of the second lower bonding pads is greater than a maximum width of the corresponding second upper bonding pads.